I have a 24" ACD. It's a few months old - maybe 3. I just noticed a dead pixel. I'm not going to take it in, but if I did want to take it in and get it replaced, how bad would it need to be before they would replace it for me? I know within the first 2 weeks it's for any reason. I assume within the first year I have a pretty good shot of getting it replaced. Ideas?